5 Essential Elements For CLBO Crystal
5 Essential Elements For CLBO Crystal
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All-good-condition ultraviolet lasers are already widely used in the fields of mechanical flaw detection, lithography, micromachining and medication for the benefits of little volume, prolonged lifetime, significant performance, great beam quality, wide tuning and narrow spectral line, etc. Utilizing higher electrical power around-infrared coherent gentle source as the basic frequency supply based on nonlinear tuning technological know-how, generating ultraviolet coherent radiation by multistage frequency conversion is considered to be an important way to create the ultraviolet coherent mild supply.
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According to the proof-of-basic principle experiment, the conversion efficiency of 23% implied the potential for achieving high-electricity at the 2nd Stokes wavelength with the Raman laser. In the event the pump laser of 1078 nm can be obtained at the common ability of fifty W, the output energy of its 2nd Stokes wavelength at 1512 nm may be much more than ten W. The design on the Raman laser cavity ought to be optimized in order to avoid the damage of the M1 and diamond surface.
全固态紫外激光器以其体积小、寿命长、效率高、光束质量好、调谐范围宽、谱线窄等优点，广泛应用于机械探伤、光刻、微加工和医学等领域，等，利用大功率近红外相干光源作为基于非线性调谐技术的基频源，通过多级变频产生紫外相干辐射被认为是发展紫外相干光源的重要途径。紫外相干光源的关键问题是研制紫外波段的非线性光学变频晶体。非线性光学晶体是实现频率变换的条件之一，因此对非线性光学晶体的生长、尺寸、损伤电阻、转换效率和允许的参数范围提出了越来越高的要求。
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Both of those the 1040 nm and 1078 nm laser come from one dual-wavelength Yb-doped fiber laser. Each individual laser is amplified by stages of fiber amplifier and Yb-doped products amplifier, respectively.
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The heartbeat period of the second Stokes light was shortened to 5 ns as revealed in Figure 7a, an individual-shot picture from the oscilloscope, and that is a typical phenomenon in Raman laser [forty four] though the heartbeat duration of your pump laser was 10 ns.
Cesium Lithium Borate (CsLiB6O10 or CLBO) is the simplest non-linear crystal which generates ultraviolet harmonics of your Nd:YAG fundamental laser wavelength. As a way to increase the injury threshold, small CLBO area roughness, by ultra-precision machining, is required. Because the CLBO crystal has straightforward hydroscopic reaction and micro scratches in machining, ultra-precise machining from the CLBO crystal is usually a tricky technical trouble.
The beam profile proven in Figure 7b demonstrated an excellent beam good quality as among the list of deserves of Raman laser, which would be advantageous to produce a 193-nm DUV laser with a top quality beam.
Its UV absorption edge reaches 180 nm. The effective nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about two times as big as that of KDP. CLBO crystals is usually grown from the stoichiometric soften with reduce viscosity.
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